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Table 3 Sedentary behavior from the activPAL3 across Tertiles of Sedentary Behavior from the GT3X, the Sedentary Behavior Two Domain Instrument (SB2D), and the Pregnancy Physical Activity Questionnaire (PPAQ)

From: Validity of self-reported and objectively measured sedentary behavior in pregnancy

 

Tertile 1

Tertile 2

Tertile 3

p-for-linear trend

mean

(SD)

mean

(SD)

mean

(SD)

 

SED hr./day

GT3X a

 1st Trimester

8.58

(1.34)

9.84

(1.09)

10.54

(1.55)

< 0.001

 2nd Trimester

8.69

(1.04)

9.59

(1.09)

10.27

(1.07)

< 0.001

 3rd Trimester

8.65

(1.33)

9.66

(0.97)

10.07

(1.05)

0.001

SB2Q

 1st Trimester

8.85

(1.60)

9.47

(1.16)

10.69

(1.29)

< 0.001

 2nd Trimester

9.38

(1.20)

9.56

(1.25)

9.69

(1.31)

0.425

 3rd Trimester

8.84

(0.96)

9.34

(1.31)

10.14

(1.28)

0.001

PPAQb

 1st Trimester

8.84

(1.45)

9.53

(0.99)

10.59

(1.63)

< 0.001

 2nd Trimester

9.07

(1.40)

9.63

(1.01)

10.00

(1.14)

0.018

 3rd Trimester

8.95

(1.12)

9.79

(1.02)

9.51

(1.68)

0.158

SED%

GT3Xa

 1st Trimester

0.58

(0.09)

0.64

(0.09)

0.71

(0.08)

< 0.001

 2nd Trimester

0.58

(0.08)

0.62

(0.05)

0.70

(0.07)

< 0.001

 3rd Trimester

0.57

(0.10)

0.62

(0.05)

0.70

(0.08)

< 0.001

SB2D – Likert

 1st Trimester

0.61

(0.09)

0.60

(0.08)

0.71

(0.09)

0.001

 2nd Trimester

0.59

(0.07)

0.66

(0.08)

0.69

(0.09)

< 0.001

 3rd Trimester

0.58

(0.07)

0.66

(0.08)

0.68

(0.12)

0.001

  1. aSample sizes were n = 57 for 1st trimester; n = 56 for 2nd trimester; and n = 51 for 3rd trimester
  2. b Sample sizes was n = 57 for the 2nd trimester